Pathology All are true about the Widal test, except : A Baseline differs depending on the endemicity of disease. B O antibodies last longer and hence are not an indicator of recent infection C H antigen cannot differentiate between subtypes D High titre value in a single Widal test, not confirmation 💡 Explanation All are true about the Widal test, except : ✓ Correct Answer: B. O antibodies last longer and hence are not an indicator of recent infection